Gear shifter



FIG. 1 is a perspective view of a gear shifter;

FIG. 2 is a back view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top view thereof.

The broken lines represent portions of the structure that form no part of the claim. 

The ornamental design for a gear shifter, as shown. 